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Document type:
Zeitschriftenaufsatz 
Author(s):
Rizzi, F.; Manenti, M.; Di Carlo, A.; Lugli, P. 
Title:
Nonequilibrium phonon generation in coupled Wannier-Stark ladders from a semiconductor superlattice in a three-terminal device 
Abstract:
We present an experimental and a theoretical study on the midinfrared electroluminescence associated with transitions between electric-field-induced conduction states, forming Wannier-Stark (WS) ladders, in a strongly coupled GaAs∕AlAs superlattice inserted in a heterostructure bipolar transistorlike device. Electroluminescence shows wide tunability (100–210meV) of the diagonal intra-WS radiative transition, up to the merging with the vertical inter-WS emission, at constant injected emitter cur...    »
 
Keywords:
Phonons Superlattices Electric fields Electroluminescence Semiconductors 
Journal title:
J. Appl. Phys. 99, 124504 (2006) 
Year:
2006 
Year / month:
2006-06 
Quarter:
2. Quartal 
Month:
Jun 
Language:
en 
Publisher:
AIP Publishing LLC.